Hi.
Could someone please help me in converting a 3 digit multiplexed LED display to 3 single 7 segment LED displays.
I've bought a temperature display unit. Now I want to remove the 3 digit display and connect it via darlington (arrays or 2003a's pending cathode or anode), to three large 10" single digital displays. I can't work out the logic of the re-wiring.
I know the single digits have a,b,c,d,e,f,g, a dp connection and either common cathode or anode connections (10 pins total).
From what I see, the 3 digits units also have "a" to "g" (pins 11, 7, 4, 2, 1, 10 & 5) and pin 3 for DP, and pin 8, 9 & 12 for what I assume is the common anode or cathode connection. But how to I re-wire them?
(PS. Also, do both pins 3 and 8 of a single digit led display have to be connected to either power or ground (pending cathode or anode), or can you connect 1 only?)
Could someone please help me in converting a 3 digit multiplexed LED display to 3 single 7 segment LED displays.
I've bought a temperature display unit. Now I want to remove the 3 digit display and connect it via darlington (arrays or 2003a's pending cathode or anode), to three large 10" single digital displays. I can't work out the logic of the re-wiring.
I know the single digits have a,b,c,d,e,f,g, a dp connection and either common cathode or anode connections (10 pins total).
From what I see, the 3 digits units also have "a" to "g" (pins 11, 7, 4, 2, 1, 10 & 5) and pin 3 for DP, and pin 8, 9 & 12 for what I assume is the common anode or cathode connection. But how to I re-wire them?
(PS. Also, do both pins 3 and 8 of a single digit led display have to be connected to either power or ground (pending cathode or anode), or can you connect 1 only?)